gramophone vs acoustic gramophone

gramophone and acoustic gramophone both are nouns.

Word	Noun	Adjective	Verb	Adverb
gramophone	Yes	No	No	No
acoustic gramophone	Yes	No	No	No

As nouns, gramophone and acoustic gramophone are synonyms defined as:

gramophone and acoustic gramophone: an antique record player; the sound of the vibrating needle is amplified acoustically

gramophone (noun)	acoustic gramophone (noun)
an antique record player; the sound of the vibrating needle is amplified acoustically	an antique record player; the sound of the vibrating needle is amplified acoustically